"OS/2 has many applications that had been created by companies, individual developers and hobbyists. Many of these applications still works under the newest version of eComStation and have demonstrated a good quality. The only issue is that they are turning into abandonware since developers had switched to other platforms, but there is a chance to extend their life with the 'Open Source Long Live Elixir'. Here at OS2World.com we will like to make a call to OS/2-eCS developers and ex-developers to open source their creations. We believe that the software can be expanded for the benefit of the community and allowing a learning experience from the code of these applications."

"...The implementation is flawed as it is based upon a single input queue. The SIQ means, in practical terms, that a single crashing application can make any mouse or keyboard interaction with the OS impossible; in these situations, the OS seems to working and applications seem to be running but you can't interact with them. After such a crash, all you can do is reset the machine."

It is not a single input queue. If for any reason it's called SIQ, it is because the Presentation Manager's shell is a synchronous event. And it rarely would bring the machine down. An ALT-ESC or CTRL-ESC would have sufficed to bring up the window list and (if needed) close the offending program. Later versions would have a feature that would revive stuck windows without having to terminate them (Asynchronous Focus Change).